GB/T 41354-2022 English PDF

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GB/T 41354-2022: Hydraulic fluid power - Plain-end, seamless and welded precision steel tubes - Dimensions and nominal working pressures
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41354-2022	119	Add to Cart	3 days	Hydraulic fluid power - Plain-end, seamless and welded precision steel tubes - Dimensions and nominal working pressures	Valid

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Basic data

Standard ID: GB/T 41354-2022 (GB/T41354-2022)
Description (Translated English): Hydraulic fluid power - Plain-end, seamless and welded precision steel tubes - Dimensions and nominal working pressures
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J20
Word Count Estimation: 6,645
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41354-2022: Hydraulic fluid power - Plain-end, seamless and welded precision steel tubes - Dimensions and nominal working pressures

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hydraulic fluid power - Plain-end, seamless and welded precision steel tubes - Dimensions and nominal working pressures ICS 23.100.40 CCSJ20 National Standards of People's Republic of China Hydraulic transmission seamless or welded type plain end precision steel tubes Dimensions and Nominal Pressure (ISO 10763.2020,MOD) Published on 2022-03-09 2022-10-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is revised and adopted ISO 10763.2020 "Hydraulic Transmission Seamless or Welded Plain End Precision Steel Tube Dimensions and Nominal Pressure". The technical differences between this document and ISO 10763.2020 and their reasons are as follows. --- Increased the scope of application (see Chapter 1) to make the expression more accurate; --- Replaced ISO 5598 (see Chapter 3) with the normatively cited GB/T 17446 to adapt to my country's technical conditions and improve operability. action; --- Replaced ISO 4397 (see 4.1) with the normatively cited GB/T 2351 to adapt to my country's technical conditions and improve operability action; --- Deleted ISO 3305 (see Chapter 1, Chapter 2, Chapter 4 and Table 1 in ISO 10763.2020), directly referencing the standard The data in, more concise. The following editorial changes have also been made to this document. ---Adjusted the table layout format; --- Deleted the unit "bar" for pressure. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Hydraulic Pneumatic Standardization Technical Committee (SAC/TC3). This document is drafted by. Jiangyin Hongteng Machinery Co., Ltd., Changyuan Electronics (Group) Co., Ltd., Hefei Changyuan Hydraulic Co., Ltd. Company, Xiamen Yinhua Machinery Co., Ltd., Jiangsu Machinery Research and Design Institute Co., Ltd., Guangdong Yidu Technology Co., Ltd., Guangdong Hengxinya Technology Co., Ltd., Chizhou Jinrui Machinery Manufacturing Co., Ltd., Beijing Machinery Industry Automation Research Institute Co., Ltd. The main drafters of this document. Yu Yandong, Liu Xiaobo, Wang Mingzhu, Ji Changxi, Yang Yongjun, Li Shouying, Wang Wenchun, Wang Zhengchang, Cao Qiaohui.

Introduction

In the hydraulic transmission system, the power is transmitted and controlled by the pressurized fluid in the closed circuit. The elements are connected by joints (connectors) and pipes. A rigid tube is a rigid conduit. Hydraulic transmission seamless or welded type plain end precision steel tubes Dimensions and Nominal Pressure

1 Scope

This document specifies the dimensions and nominal working pressure (hereinafter referred to as "nominal pressure") of seamless or welded plain end precision steel pipes. This document applies to steel pipes for hydraulic system connections.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 2351 Fluid Transmission System and Components Hard Pipe Outer Diameter and Hose Inner Diameter (GB/T 2351-2021, ISO 4397.2011, IDT) GB/T 17446 Vocabulary of Fluid Transmission Systems and Components (GB/T 17446-2012, ISO 5598.2008, IDT)

3 Terms and Definitions

Terms and definitions defined in GB/T 17446 apply to this document.

4 Technical requirements

4.1 The outer diameter of the steel pipe shall comply with GB/T 2351. 4.2 The tensile strength of the steel pipe in the normalized state (NBK) should not be less than 360MPa.

5 Nominal pressure

Table 1 gives the nominal pressure corresponding to the outer diameter and wall thickness of the selected steel pipe. The ratio of nominal pressure to calculated burst pressure is 1.4, according to the following The formula to calculate the surface. Calculate burst pressure. pb=Rm·ln[D/(D-2t)] (1) Nominal pressure. pw=pb/4 (2) where. pb --- Calculate the burst pressure, in megapascals (MPa); pw --- nominal pressure, in megapascals (MPa); Rm --- minimum tensile strength, in megapascals (MPa); ln --- natural logarithm, also expressed as loge; D --- Nominal outer diameter of steel pipe, in millimeters (mm); ......

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